Thin and Foldable Fluid Pump Carried under User&#39;s Clothes

ABSTRACT

This invention presents three kinds of conceptual models of fluid pump with similar innovation, to design thin and small compartments and laterally link all compartments with flexible means so that the whole fluid pump is thin and flexible. The first one uses the concept of spiral peristaltic pump. The rollers on the thin and round rotator of the thin spiral type of peristaltic pump roll over a section of elastic tube to press out the fluid in the tube. The rotator may be driven by a thin motor, electromagnetic driver, or spring. The second one uses the concept of linear peristaltic pump. The thin motors or electromagnetic drivers press different places of a section of elastic tube or its variation in special sequence to press out the fluid in the tube. The third one uses the concept of distributed processor. It comprises a number of thin and small pumping units where each one uses the elastic force, compressed air, linear motor, or the electromagnetic device to press out limited amount of fluid in the container. The number of pumping units is appropriate so that the user carries enough fluid to be convenient. For all models, the pump is laterally integrated by linking thin and small compartments with flexible means. The pump is as thin as the compartments and is flexible as the compartments are small and are linked with flexible cables, tubes, and other linking means. So, the user will feel comfortable to carry the pump under their clothes or to attach it to the skin.

FIELD OF INVENTION

The present invention relates to the thin and foldable fluid pump to beused in the apparatus that is carried under the user's clothes or isattached to the user's skin. Previous Arts U.S. Pat. No. Inventor Date6854620 Ramey Feb. 15, 2005 6699234 Yeh Mar. 02, 2004 6659980 Moberg, etal. Dec. 09, 2003 6656148 Das, et al. Dec. 02, 2003 5961487 Davis Oct.05, 1999 US patent application Applicant Date 20050159708 Sidler Jul.21, 2005 20050177111 Ozeri Aug. 11, 2005 20050051580 Ramey Mar. 10, 200520050020980 Inove Jan. 27, 2005 20040133166 Moberg Jul. 08, 200420050020978 Vollenweider Jan. 27, 2005Referenceshttp://www.debiotech.com/debiotech.htm

BACKGROUND AND PRIOR ART

Some patients, like type I diabetics, need medication continuously. Themedication infusion pumps, or called insulin pumps, are ideal for themto reduce the number of injections. However, all the medication infusionsystems in the market, like those made by Medtronic MiniMed, Disetronic,Deltec, Dana, and Animas, are about a cellular phone's size that are toothick. The systems developed recently, like those presented in the U.S.Pat. No. 6,854,620 by Ramey, U.S. Pat. No. 6,659,980 by Moberg, et al.,U.S. Pat. No. 5,961,487 by Davis, and U.S. Pat. No. 6,656,148 by Das, etal., and in the US patent applications 20050177111 by Ozeri, 20050159708by Sidler, 20050051580 by Ramey, 20050020980 by Inove et al.,20050020978 by Vollenweider, 20040133166, 20040085215, and 20030073954by Moberg, and 20030233069 by Gillespie have the same problem. They areinconvenient to be carried and are difficult to be hidden in the summer.The users feel that they are connected to an external device and hate tobe frequently asked, “What's that?”

Micro-Electromechanical Systems (MEMS) is a rapidly growing field thatis impacting the micro pumps used in the insulin pumps. However, thiskind of pumps is too expensive to be disposable mainly because the coilsare difficult to be built in the wafer and integrating the diaphragm andthe valves into the micro pump are expensive. The company Debiotechdeveloped the micro pump chip with piezoelectric actuator four years,ago. The products are still not available in the market. The systemsdeveloped recently, like those presented in the U.S. Pat. No. 6,827,559by Peter, et al., have the same problem, too expensive to be disposable.For all these systems, the medication passes through the micro pumps.The medication may have very little residual staying in the devices fora long time if the devices are not disposable. The users will beskeptical to use them. Another research initiated in the CaliforniaInstitute of Technology developed the micro pump that boils a tinybubble to drive the medication. However, the medication passes throughthe micro pump and is heated at the same time. This is a big concern andthe users may hesitate to use the systems. The system is also tooexpensive to be disposable.

In contrast to all the above approaches, my invention “Light, Thin, andFlexible Medication Infusion Apparatuses Attachable to User's Skin” withU.S. Pat. No. 6,699,234 presented conceptual models of thin and flexibleinfusion systems. The pump, the controller, the batteries, and thereservoir are thin and small and are laterally linked with flexiblematerials. So, the users can carry the pumps under their clothes orattach the pumps to their skin. Since the system is so close to theuser's body and is flexible, the users will feel much more convenientand comfortable than using the conventional ones. Each pump may beexpensive, but, the medication only passes through cheap and disposabletubes. Since the users will use the pumps for a long time, using thesekinds of pumps will be much more economic than using the MEMS micropumps. However, the infusion systems need thin and foldable pumps todrive the medication.

The peristaltic pump has been widely used for medical purposes. Thereare mainly two kinds of such pump. The one that round rotator withrollers rotates and presses out the fluid from a section of tube is alsocaller roller pump. The other one is linear where the fluid issequentially forced out from the input end to the output end of asection of pipe. Base on these concepts, the present invention presentsthe conceptual models of the fluid pump that are thin and foldable. Itis ideal to be used in the medication infusion systems stated above.Since the hard compartments are small, the users will feel to beflexible.

The first model is to install thin and small driving means in therotator so that the whole pump is thin and small. The second modelcomprises a number of stages linked by flexible means so that each hardcompartment is thin and small and the whole pump is thin and foldable.The user will feel like flexible. The fluid is drawn into the tube bythe elasticity force of the tube and is pressed out of the tube by forceapplied to the tube. There can be more than one stage between the inputand the output stages to improve the efficiency of the pump. For thesetwo models, the pump may either pump the fluid directly or pump the airinto a sealed fluid reservoir to force out the fluid indirectly. For theformer, the fluid container may be flexible and the empty detectionrelies on detecting that the elastic tube cannot return to its originalshape. For the latter, the empty detection relies on detecting that theelastic tube is over pumped. The user will appreciate the latter morebecause there are fewer parts to be disposed. Sidler presented to usethe linear peristaltic pump for dosage control in the US patentapplication 2005019708. However, there are few fundamental differences.In Sidler's application, the pump is a one-piece hard compartment andthe driving force to make the fluid flow into the pump is thepre-installed force in the fluid reservoir. Consequently, the emptydetection relies on detecting the position of the plunger. The thirdmodel is to divide the pump into thin and small pieces and to laterallylink them with flexible means so that the whole pump is thin andflexible.

OBJECTS AND ADVANTAGES

My present invention presents conceptual models of thin and flexiblefluid pump, using thin motors, electromagnetic drivers, or elasticdevices. They are ideal to be used in the medication infusion systems.The users of the apparatuses using such pumps will feel convenient andcomfortable to carry the apparatuses under their clothes or to attachthe apparatuses to their skin.

DRAWING FIGURES

FIG. 1: The conceptual model of a thin fluid pump comprising a roundrotator to press out the fluid in an elastic tube.

FIG. 2: The conceptual structure of the thin pump driven by rotary orrotary step motor.

FIGS. 3A and 3B: The conceptual model of a thin pump driven by a linearmotor or an electromagnetic driver.

FIG. 4: The structure of a conceptual model of thin pump that the roundrotator is driven by the spiral spring.

FIGS. 5A to 5E: The conceptual model of a thin pump that the elastictube is pressed at different places in specific sequence to press outthe fluid.

FIG. 5F: The quantifier to press out precise amount of fluid.

FIG. 5G: The device to eliminate the erroneous fluid made by input andoutput stages.

FIG. 6: The conceptual model of a thin pump comprising a number ofpumping units.

FIG. 7: The conceptual model of a thin pumping unit driven by an elasticfluid bag.

FIG. 8: The conceptual model of a thin pumping unit driven by a spring.

FIG. 9: The conceptual model of a thin pumping unit driven by compressedair.

FIG. 10: The conceptual model of a thin pumping unit driven by a thinlinear motor or electromagnetic driver.

SUMMARY

This invention presents three conceptual models of fluid pump withsimilar innovation, to design thin and small compartments and laterallylink all compartments with flexible means so that the whole fluid pumpis thin and flexible. The first one uses the concept of spiralperistaltic pump. The rollers on the thin and round rotator of the thinspiral type of peristaltic pump roll over a section of elastic tube topress out the fluid in the tube. The rotator may be driven by a thinmotor, electromagnetic driver, or spring. The second one uses theconcept of linear peristaltic pump. The thin motors or electromagneticdrivers press different places of a section of elastic tube or itsvariation in special sequence to press out the fluid in the tube. Eachmotor or driver and the associated parts can be made to be a thin andsmall compartment. The third one uses the concept of distributedprocessor. It comprises a number of thin and small pumping units whereeach one uses the elastic force, compressed air, linear motor, or theelectromagnetic device to press out limited amount of fluid in thecontainer. Each pumping unit is designed to be a thin and smallcompartment. The number of pumping units is appropriate so that the usercarries enough fluid to be convenient. For all models, the pump islaterally integrated by linking thin and small compartments withflexible means. The pump is as thin as the compartments and is flexibleas the compartments are small and are linked with flexible cables,tubes, and other linking means. So, the user will feel comfortable tocarry the pump under their clothes or to attach it to the skin.

DETAILED DESCRIPTION

Three conceptual models of thin and foldable fluid pump are presented.Two of them are peristaltic type pumps that use the thin motors, theelectromagnetic drivers, or the spring type of elastic devices to pressout the fluid in the tube. The pump may draw in the fluid, like themedication, directed from the reservoir and press the fluid out of thepump. It also may pump the fluid, like the air, into a sealed fluidreservoir to press out the fluid. The first model is to use rounddriving device whose rollers press the fluid out of an elastic tube inone direction. The second model is that the elastic portions of a tubeis pressed at different points with special sequence to press out thefluid. The third conceptual model of thin fluid pump is composed of anumber of pump units. Each pump unit uses the thin motor, theelectromagnetic driver, or the elastic device to press out the fluid ina thin fluid reservoir. The innovation relies on making them thin andfoldable. Since the apparatus is to be carried under the user's clothes,a remote controller is used. To keep the figures neat, the controller,the batteries, and the cables may not be shown in the correspondingfigures.

FIG. 1 shows the first conceptual model of the pump. The round rotator80 has a number of rollers 84 on its outer edge and can rotate. Thepumping tube 86 is elastic. A roller 84 shuts off the pumping tube 86when it rolls on the pumping tube 86. There is at least one roller 84 toshut off the pumping tube 86 at any time. The tube support 90 is a harddevice to help the rollers 84 to shut off the pumping tube 86 and isoptional. A driving means drives the rotator 80 to rotate. The fluid inthe pumping tube 86 is pressed along with the movement of the rollers84. Hence, the fluid is drawn from the input end and is pressed out fromthe output end of the pumping tube 86 through the fluid tubes 8. Notethat, when a roller 84 leaves the pumping tube 86, the pumping tube 86will return to its original shape. That will draw back the fluid thathas been pressed out. So, the controller needs to know when a roller 84leaves the pumping tube 86 and controls the rotator 80 to rotate toovercome this effect.

FIG. 2 shows the conceptual structure of the driving means that theround rotator 80 is the thin and round actuator 80 of a thin rotary orrotary step motor. The stators are not shown in the figure. When therotator, or the actuator, 80 is driven to rotate, the rollers 84 pressout the fluid from the pumping tube 86. For a step motor, the actuator80 rotates fixed distance for each step or pulse. The controller countsthe number of steps that the rotator 80 rotates and translates it to bethe distance that the rollers 84 move. The cross section area of thepumping tube 86 times the distance that the rollers 84 move is thevolume of the fluid pressed out. When enough fluid is pressed out, thecontroller stops the electrical current applied to the motor. For arotary motor, the mechanism to detect the distance that the actuatormoves is simple. Contacting points are installed on the actuator and thestators or the substrate. Detecting which contacting point on theactuator contacts which contacting point on the stators, the controllerwill know how long the actuator moves.

FIGS. 3A and 3B show the conceptual model of another driving means wherethe round rotator 80 is driven by a linear motor or a linearelectromagnetic driver 42. The round rotator 80 has a ring of rotatinggears 82 on its inner side. Inside the round rotator 80 and the ring ofrotating gears 82, there is a linear motor or linear electromagneticdriver 42 that drives its actuator 44 to move up and down. Each of thetwo ends of the actuator 44 has a pushing gear 88. As shown in FIG. 3A,the tip portion of the tilting face of the lower pushing gear 88encounters the tip portion of the tilting face of the rotating gear 82right below the actuator 44 when the actuator 44 moves down. Hence, theround rotator 80 is pushed to rotate clockwise when the actuator 44continues to move down. As shown in FIG. 3B, the tip portion of thetilting face of the upper pushing gear 88 encounters the tip portion ofthe tilting face of the rotating gear 82 right above the actuator 44when the actuator 44 moves up. Hence, the round rotator 80 is pushed torotate clockwise when the actuator 44 continues to move up. The smallestmovement of the rollers is one pushing by the actuator 44. That is astep. The controller is easy to control the volume of the fluid to bepumped.

FIG. 4 shows the structure of another conceptual model of the drivingmeans that the round rotator 80 is driven by the thin spiral spring 30.The outer end of the spiral spring 30 is connected to the round rotator80 and the inner end is connected to the fastener 92. The fastener 92can fasten the spring 30 in one direction only. So, the fastened spring30 drives the round rotator 80 to rotate accordingly. The mechanism todetect the distance that the round rotator 80 moves is similar with thatexplained above. Contacting points are installed on the round rotator 80and the substrate. Detecting which contacting point on the round rotator80 contacts which contacting point on the substrate, the controller willknow how long the round rotator 80 rotates. That is translated to be thevolume of the fluid delivered. The unit controller 24 is a linear motoror linear electromagnetic driver 42 that can drive its actuator 44. Theactuator 44 is driven to stick into the round rotator 80 to stop theround rotator 80 normally. When the round rotator 80 needs to rotate,the actuator 44 is pulled to let the round rotator 80 rotate. Whenenough fluid is delivered, the actuator 44 is controlled to stick intothe round rotator 80 to stop the round rotator 80 again.

FIGS. 5A to 5E show the conceptual model of a thin pump that the elastictube is pressed at different places in specific sequence to press outthe fluid. There are three or more stages: an input stage, one or moredosage stages, and an output stage. Each stage has a linear motor or alinear electromagnetic driver that can drive its actuator back andforth. In the example shown in the figures, there are four dosagestages. The input stage 42I, the dosage stages 42A, 42B, 42C, and 42D,and the output stage 42O can drive the input actuator 44I, the dosageactuators 44A, 44B, 44C, and 44D, and the output actuator 44O,respectively. FIG. 5A shows the state that the pump is not pumping wherethe output stage shuts off the pumping tube 86 normally. The left end ofthe elastic pumping tube 86 is connected to the fluid source and theright end is connected to the destination. The input actuator 44I andthe dosage actuators 44A, 44B, 44C, and 44D do not press the pumpingtube 86. The output actuator 44O is connected to the spring 30 to pressand to shut off the pumping tube 86. When the pump begins to pump thefluid, the input actuator 44I is driven to press and to shut off thepumping tube 86 as FIG. 5B shows. Then, the output actuator 44O isdriven to leave and to open the pumping tube 86 as FIG. 5C shows. Then,the dosage actuators 44A, 44B, 44C, and 44D are selectively driven topress the pumping tube 86. In this example, the dosage actuators 44A and44D are selected as FIG. 5D shows. Then, the output stage 42O isdeactivated. The spring 30 will drive the output actuator 44O to pressand to shut off the pumping tube 86 as FIG. 5E shows. Then, the inputand all dosage stages 42I, 42A, 42B, 42C, and 42D are deactivated. Thepumping tube 86 is elastic and, hence, will push all the input actuator44I and the dosage actuators 44A, 44B, 44C, and 44D back as FIG. 5Ashows. Or, the input actuator 44I and the dosage actuators 44A, 44B,44C, and 44D are driven by the stages to leave and to open the pumpingtube 86. The elasticity of the pumping tube 86 will draw the fluid fromthe fluid source into the pumping tube 86. This cycle presses out somefluid in the pumping tube 86. Each of the dosage actuators 44A, 44B,44C, and 44D may press out different volume of fluid. Preferably, thevolume pressed out by the dosage actuators 44A, 44B, 44C, and 44D is 1,2, 4, and 8 units, respectively. So, the volume pressed out in one cyclecan be any units from 1 to 15. In the example shown in FIG. 5D, 9 unitsof fluid are pressed out.

The volume of the fluid pressed out by a dosage actuator needs to beprecise. The quantifier 62 shown in FIG. 5F solves the problem. It is apiece of hard tube 67 whose outer diameter is the same as the innerdiameter of the pumping tube 86 and is installed inside of the pumpingtube 86. It has one dosage concavity associated with each dosageactuator. The volume of each dosage concavity is the volume of the fluidto be pressed out by the associated actuator. The tip of each dosageactuator matches the contour of the associated dosage concavity. So,when a dosage actuator is driven to press the pumping tube 86, thedosage actuator fits into the associated dosage concavity. Hence, exactamount of the fluid is pressed out. In the example, there are fourdosage concavities 66A, 66B, 66C, and 66D associated with the dosageactuators 44A, 44B, 44C, and 44D, respectively. The material of thepumping tube is chosen to be that, when there is not any pressure on it,it always returns to the original shape. So, when a dosage actuatorreleases the quantifier, exact amount of the fluid is drawn in. Analternative is that each dosage concavity of the quantifier is coveredand laminated with an elastic membrane. Then, the fluid tubes areconnected to the two ends of the quantifier. It works the same way.

When the output stage releases the elastic pumping tube 86, the fluid inthe output tube is drawn back to the output stage. The same amount ofthe fluid will be pressed out when the output stage shuts off thepumping tube 86. However, since the tube is elastic, these two amountsmay have very small difference. The solution is similar with the aboveand is shown in FIG. 5G. The hard tube 67 has a concavity 67 and isinstalled in the pumping tube 86. The tip of the output actuator 44Omatches the contour of the concavity 67. When the output stage shuts offthe pumping tube 86, the actuator 44O presses the pumping tube 86 fitsin the concavity 67 so that the pumping tube 86 is shut off. Since thecontour of the concavity 67 and the tip of the output actuator 44O arehard and permanent, the amount of the fluid drawn in and pressed out theoutput stage will be the same. The input stage has similar problem andthe solution is the same.

Any number of stages may be installed to be a hard compartment. Thequantifiers of different hard compartments are linked with flexibletubes, flexible cables, and other flexible linking means. For the bestflexibility, each stage is installed to be a hard compartment and allstages are linked with flexible tubes, flexible cables, and otherflexible linking means. So, the resulting fluid pump is flexible.

Alternatively, the input stage may shuts off the pumping tube when thepump is not in operation. For either model, the springs 30 of the inputor the output stage may be eliminated. Then, current needs to be appliedto the input or the output stage to shut off the elastic pumping tube86. Or, the input or the output stage is latched after the elasticpumping tube 86 is shut off.

For the above two models, the fluid pump either draws the fluid directlyfrom the reservoir and presses out the drawn fluid or pumps the air intothe sealed fluid reservoir to press out the fluid indirectly. For theformer, the empty detection is to detect that the pump is unable to drawthe fluid. In the other words, this is to detect that the pumping tubecannot return to the original shape. An easy way to do so is to add asection of empty detection tube having a portion that is significantlymore flexible than the pumping tube between the reservoir and the pump.So, when the reservoir is empty and the pumping tube returns to theoriginal shape, the elastic portion of the empty detection tube will beconcave. That can drive a switch. The controller will know that thereservoir is empty when the switch changes state. For the latter, theempty detection is to detect that the air is over pumped into thereservoir. The solution is similar with the above. The empty detectiontube has a portion that is significantly more flexible than the pumpingtube. So, when the reservoir is empty and the pump pumps the air intothe reservoir, the elastic portion of the empty detection tube will beconvex. That can drive a switch, too. The controller will know that thereservoir is empty when the switch changes status.

FIG. 6 shows another conceptual model of the fluid pump that comprises anumber of pumping units 47. A pumping unit 47 further comprises a unitcontroller 55, a pumping means, and a fluid bag 70 to hold the fluid.Since the fluid pump is carried under the user's clothes, the pumpingunit 47 must be small. However, it may be too small to carry enoughfluid in the fluid bag 70 because the pumping means also takes space butthe total fluid in all fluid bags 70 is enough. The system controller 50controls that the pumping units 47 take turns to deliver the fluid. Theunit controller 55 controls the pumping means to press out the fluid inthe fluid bag 70. The output fluid tubes 8 of the pumping units 47 areconnected to an adapter 79. The output fluid tube 8 of the adapter 79 isconnected to the destination. Alternatively, the fluid bags 70 arelinked in cascade where every two consecutive fluid bags 70 are linkedwith a flexible fluid tube 8. All hard compartments, the pumping units47, the system controller 50, and the batteries with holders 90, arelinked with flexible fluid tubes 8, cables 95, and pad type linkingmeans 96 so that the system is thin and foldable.

FIG. 7 shows a conceptual model of pumping unit 47 that uses elasticfluid bag to press out the fluid in the bag. The unit case 10 is smalland thin enough to be comfortably carried under the user's clothes orattached to the user's skin. Inside the unit case 10, there is a piston20, a movement transferor 25, and an elastic fluid bag 70. The movementtransferor 25 can be any combination of movement transferors, chains,strings, rods, or any kind of similar material as long as it cantransfer the movement between the piston 20 and the unit controller 55.The fluid bag 70 connects to the piston 20 and the case front 65. Whenit is filled with fluid, the tension of the fluid bag 70 is strongenough to press out the fluid. It also pulls the piston 20 toward thecase front 65. The tension also keeps the fluid bag 70 straight so thatthe variation of the cross section area of the fluid bag 70 isnegligible. The inner cross section area of the fluid bag 70 times thedistance that the piston 20 moves is the amount of fluid that is pressedout. The piston 20 can be a little bit smaller than the inner crosssection of the unit case 10 so that the friction between the unit case10 and the piston 20 is minimized. The movement transferor 25 connectsto the piston 20. So, when the fluid bag 70 pulls the piston 20, themovement transferor 25 transfers the movement of the piston 20 to theunit controller 55 that determines the movement of the piston 20. Theunit controller 55 can hold the movement transferor 25 so that the fluidstops flowing out of the fluid bag 70 and can also release the movementtransferor 25 so that the fluid bag 70 pulls the piston 20 to press outthe fluid. When the fluid pressed out is enough, the unit controller 55holds the movement transferor 25 to stop the fluid flowing out.

FIG. 8 shows a conceptual model of the pumping unit 47 using an elasticdevice 30, like the spring, to press out the fluid in the fluid bag 70.The tightened or straightened elastic device 30 either drives the piston20 directly or drives the movement transferors 25 to drive the piston 20indirectly to press out the fluid. The rest is similar with that shownin FIG. 7.

FIG. 9 shows a conceptual model of the pumping unit 47 using thecompressed-air bag 38 to press out the fluid in the fluid bag 70. Thecompressed-air bag 38 is connected to the air pump 24 via the air pipe72. Then, the air pump 24 pumps the air into the compressed-air bags 38.When enough air is pumped into the compressed-air bag 38, the air pump24 and the air pipe 12 are detached. The compressed air in thecompressed-air bags 38 will press out the fluid if the unit controller55 releases the movement transferors 25. The rest is similar with theabove. Alternatively, the air pump 24 may pump the air into airreservoirs originally and the air reservoirs are linked to the air bags38. The figure is not shown.

FIG. 10 shows a conceptual model of the pumping unit 47 that the unitcontroller 55 comprises a thin linear step motor whose actuator 44either drives the piston 20 directly or drives the movement transferors25 to drive the piston 20 indirectly to press out the fluid. Each stepthat the actuator 44 advances will press out fixed amount of the fluid.The rest is similar with that shown in FIG. 7.

CONCLUSION

Accordingly, the readers can see that each of the three models of thefluid pump is composed of small and thin compartments that are laterallylinked with flexible means. Hence, each pump is as thin as thecompartments and is foldable. The present invention also showed that allsuch compartments can be thin. Therefore, the fluid pump is thin. Theapparatuses using such fluid pump are thin, too. Since each hardcompartment is small, the user will feel like flexible. They are idealto be carried under the user's clothes or be attached to the user'sskin. The user will feel much more comfortable to use them.

Although the description above contains many specifications, theseshould not be constructed as limiting the scope of the invention but asmerely providing illustrations of some of the presently preferredembodiments of this invention. Thus the scope of the invention should bedetermined by the appended claims and their legal equivalents, ratherthan by the examples given.

1. A thin fluid pump to deliver the fluid from the fluid reservoir tothe destination, comprising: a round rotator having any number ofrollers on its outside edge, a rotating driving means installed insideof said round rotator to drive said round rotator to rotate, a sectionof elastic pumping tube installed along part of the outer edge of saidround rotator and said rollers, an amount controlling means, acontroller, flexible fluid tubes and adapters, any number of thinbatteries, flexible cables to laterally link said controller, saidrotating driving means, and said batteries, and flexible linking meansto laterally link said controller, said rotator, and said batterieswhere there is at least one roller that presses and shuts off saidpumping tube at any time; the input end of said pumping tube isconnected to said fluid reservoir and the output end is connected tosaid destination said fluid tubes and adapters when said fluid pumpdelivers said fluid directly from said fluid reservoir to saiddestination; and the input end of said pumping tube is open and theoutput end is connected to said fluid reservoir and said fluid reservoiris connected to said fluid destination with said fluid tubes andadapters when said fluid pump pumps the air into said fluid reservoir todeliver said fluid indirectly from said fluid reservoir to saiddestination so that said controller controls said rotating driving meansto drive said round rotator to rotate in the direction from the inputend to the output end of said pumping tube; said rollers that press andshut off said pumping tube press said fluid inside said pumping tube tomove along said pumping tube from the input end to the output end whensaid rotator rotates; either said fluid is delivered from said fluidreservoir to said destination or the air is pumped into said fluidreservoir to press out said fluid from said fluid reservoir to saiddestination; said amount controlling means detects the amount of saidfluid that is delivered; said controller controls said rotating drivingmeans to stop said round rotator when enough fluid is delivered; andsaid fluid pump is as thin as said controller, said round rotator, andsaid rotating driving means and is foldable.
 2. The closure of claim 1wherein said rotating driving means is a thin and flat rotary step motorand said round rotator is the actuator of said rotary step motor; andsaid amount controlling means is that said controller counts the stepsthat said actuator rotates and translates said number to be the amountof said fluid pressed out.
 3. The closure of claim 1 wherein saidrotating driving means further comprises a ring of driving gears fixedto the inner side of said round rotator and a thin driver having anactuator installed inside of said ring of driving gears; and said amountcontrolling means is that said controller counts the number of timesthat said actuator presses said driving gears and translates it to bethe amount of said fluid pressed out where said round rotator rotateswhen said actuator presses said driving gears so that said controllercontrols said driver to drive said actuator to press said driving gearsthat drives said ring of driving gears to rotate in the direction fromthe input end to the output end of said pumping tube; hence, said roundrotator and said rollers rotate accordingly to deliver said fluid; andsaid controller stops said driver when enough fluid has been pressedout.
 4. The closure of claim 1 wherein said rotating driving meansfurther comprises an spiral elastic device, a fastener, and a unitcontroller and said amount controlling means further comprises a set ofstator contacts and a set of actuator contacts where said spiral elasticdevice is installed inside of said round rotator; the outer end of saidspiral elastic device is fixed to said round rotator; the inner end ofsaid spiral elastic device is fixed to said fastener; said unitcontroller can release said round rotator to let it rotate and can holdit to stop it; said stator contacts are installed to be stationary; saidactuator contacts are installed to rotate with said round rotator; andthe angular distance that said rotator rotates between two consecutivepairs of stator contact and actuator contact are connected is constantso that said spiral elastic device is fastened by said fastener beforesaid fluid pump is used; said unit controller releases said roundrotator to let it rotate when delivering starts; said spiral elasticdevice drives said round rotator and said rollers to rotate in thedirection from the input end to the output end of said pumping tube;said controller or said unit controller determines the amount of saidfluid delivered by counting how many times that one stator contact andone actuator contact are connected; and said unit controller holds saidround rotator to stop delivering said fluid when said fluid delivered isenough.
 5. The closure of claim 1 wherein said fluid pump furthercomprises an empty detector, comprising: a switch, and a section ofempty detecting tube having an elastic portion where the input end ofsaid empty detecting tube is connected to the output end of said pumpingtube and the output end of said empty detecting tube is connected tosaid fluid reservoir if said fluid pump is to pump the air into saidfluid reservoir to press out said fluid from said fluid reservoir tosaid destination; the input end of said empty detecting tube isconnected to said fluid reservoir and the output end of said emptydetecting tube is connected to the input end of said pumping tube ifsaid fluid pump is to draw said fluid from said fluid reservoir and topump the drawn fluid to said destination; said elastic portion issignificantly easier than said pumping tube to be deformed by thepressure in said empty detecting tube and in said pumping tube; and saidelastic portion is linked to said switch so that, when said fluidreservoir is empty, said elastic portion is deformed that changes thestate of said switch and, hence, said controller acknowledges that saidfluid reservoir is empty.
 6. A thin and foldable fluid pump to deliverthe fluid from the fluid reservoir to the destination, comprising: acontroller, an input stage and an output stage, each further comprising:a driving means and a valve means having an elastic portion where saiddriving means can press said elastic portion to shut off said valvemeans that disallows said fluid or the air to flow through said valvemeans and can release said elastic portion to open said valve means thatallows said fluid or the air to flow through said valve means under thecontrol of said controller, any number of dosage stages, each furthercomprising: a driving means and a quantifier having an elastic portionand a housing under said elastic portion where said driving means canpress said elastic portion to press out said fluid or the air in saidhousing and can release said elastic portion to let said elastic portionreturns to the original shape that draws said fluid or the air into saidhousing under the control of said controller, flexible and/or hard tubesand adapters to connect the input ends of all said quantifiers to theoutput end of said valve means of said input stage and to connect theoutput ends of all said quantifiers to the input end of said valve meansof said output stage, and either to connect the input end of said valvemeans of said input stage to said fluid reservoir and to connect theoutput end of said valve means of said output stage to said destinationwhen said fluid pump delivers said fluid directly from said fluidreservoir to said destination or to connect the output end of said valvemeans of said output stage to said fluid reservoir while the input endof said valve means of said input stage is open when said fluid pumppumps the air into said fluid reservoir to press out said fluid fromsaid fluid reservoir to said destination, any number of thin batteries,flexible and/or hard cables or the similar to laterally link saidcontroller, all said driving means, and all said batteries, and flexiblelinking means to laterally link said controller, said input stage, allsaid dosage stages, said output stage, and all said batteries whereeither said input stage shuts off its associated valve means or saidoutput stage shuts off its associated valve means when said fluid is notbeing delivered so that each hard compartment of said fluid pump issmall and all hard compartments are linked by flexible tubes, flexiblecables, and flexible linking means; said fluid or the air is drawn intoand pressed out of said dosage stages with the following five-stepcycling sequence under the control of said controller: 1) said inputstage shuts off its associated valve means; 2) said output stage opensits associated valve means; 3) selected said dosage stages press theirassociated elastic portions, respectively, to press out said fluid orthe air in their associated housings, respectively; 4) said output stageshuts off its associated valve means; and 5) said input stage opens itsassociated valve means and said dosage stages release their associatedelastic portions, respectively, to draw said fluid or the air into theirassociated housings, respectively; said fluid is delivered from saidfluid reservoir to said fluid destination; said controller determineshow much said fluid is delivered; said cycling sequence repeats untilenough said fluid is delivered; and said fluid pump is as thin as saidcontroller, said input stage, said output stage, said dosage stages, andsaid batteries and is foldable.
 7. The closure of claim 6 wherein saidvalve means is a section of elastic tube.
 8. The closure of claim 6wherein any number of said valve means and any number of saidquantifiers are built in a compartment that comprises a section ofelastic tube and a section of hard tube that has one concavity for eachsaid valve means and each said quantifier where said hard tube isinstalled inside of said elastic tube and all said concavities arecovered with said elastic tube; and said elastic portion is the portionof said elastic tube covering each said concavity so that, for each saidvalve means, said elastic tube touches the contour of the associatedconcavity to shut off said elastic tube and said hard tube when theassociated driving means presses said elastic tube; for each saidquantifier, said elastic tube touches the contour of the associatedconcavity to press out the fluid or the air in the associated housingwhen the associated driving means presses said elastic tube; and saidelastic tube returns to its original shape when the associated drivingmeans releases said elastic tube.
 9. The closure of claim 6 wherein anynumber of said valve means and any number of said quantifiers are builtin a compartment that comprises a section of hard tube that has oneconcavity for each said valve means and each said quantifier and saidelastic portion is an elastic membrane laminated to cover each saidconcavity so that, for each said valve means, the associated elasticmembrane touches the contour of the associated concavity to shut offsaid hard tube when the associated driving means presses the associatedelastic membrane; for each said quantifier, the associated elasticmembrane touches the contour of the associated concavity to press outthe fluid or the air in the associated housing when the associateddriving means presses the associated elastic membrane; and each saidelastic membrane returns to its original shape when the associateddriving means releases said elastic membrane.
 10. The closure of claim 6wherein any number of said valve means and any number of saidquantifiers are built in a compartment that has one cavity for each saidvalve means and each said quantifier and a tunnel to link all saidcavities and the two ends on a surface of the body of said compartmentand said elastic portion is an elastic membrane laminated to cover eachsaid concavity and said tunnel so that, for each said valve means, theassociated elastic membrane touches the contour of the associated cavityto shut off said tunnel when the associated driving means presses theassociated elastic membrane; for each said quantifier, the associatedelastic membrane touches the contour of the associated cavity to pressout the fluid or the air in the associated housing when the associateddriving means presses the associated elastic membrane; and each saidelastic membrane returns to its original shape when the associateddriving means releases said elastic membrane.
 11. The closure of claim10 wherein a cover layer is further installed on the top of said elasticmembrane where there is a hole on said cover layer for each said cavityso that the associated driving means can press said elastic membrane.12. The closure of claim 6 wherein said driving means that shuts off theassociated valve means when said fluid is not being delivered has anactuator that is connected to an elastic device so that said elasticdevice drives said actuator to press the associated elastic portion toshut off the associated valve means when said fluid is not beingdelivered and said controller activates said driving means to drive saidactuator to release the associated elastic portion to open theassociated valve means in said cycling sequence to deliver said fluid.13. The closure of claim 6 wherein said driving means that does notpress the associated elastic portion when said fluid is not beingdelivered has an actuator that is connected to an elastic device so thatsaid elastic device drives said actuator to release the associatedelastic portion and said controller activates said driving means todrive said actuator to press the associated elastic portion in saidcycling sequence to deliver said fluid.
 14. The closure of claim 6wherein said controller applies the electrical current with differentpolarities to said driving means to press and to release the associatedelastic portion.
 15. The closure of claim 6 wherein said driving meansthat does not press the associated elastic portion when said fluid isnot being delivered is applied with the electrical current to press theassociated elastic portion by said controller and is pushed back by theassociated elastic portion when the electrical current is stopped. 16.The closure of claim 6 wherein said fluid pump further comprises anempty detector, comprising: a switch, and a section of empty detectingtube having an elastic portion where the input end of said emptydetecting tube is connected to the output end of said valve means ofsaid output stage and the output end of said empty detecting tube isconnected to said fluid reservoir if said fluid pump is to pump the airinto said fluid reservoir to press out said fluid from said fluidreservoir to said destination; the input end of said empty detectingtube is connected to said fluid reservoir and the output end of saidempty detecting tube is connected to the input end of said valve meansof said input stage if said fluid pump is to draw said fluid from saidfluid reservoir and to pump said drawn fluid to said destination; saidelastic portion of said empty detecting tube is significantly easierthan said elastic portions of said valve means and said elastic portionof said quantifiers to be deformed by the pressure in said emptydetecting tube; and said elastic portion is linked to said switch sothat, when said fluid reservoir is empty, said elastic portion of saidempty detecting tube is deformed that changes the state of said switchand, hence, said controller acknowledges that said fluid reservoir isempty.
 17. A thin and foldable fluid pump to pump the fluid pre-storedin said fluid pump to the destination; comprising: a system controller;any number of thin pumping units, each further comprising: a housing, aflexible fluid holder holding said fluid, a piston, a unit controller,and a driving means where one end of said fluid holder is fixed to saidpiston and the other end is fixed to said housing and said driving meansdrives said piston to press out said fluid in said fluid holder; anynumber of thin batteries; flexible fluid tubes and adapters to laterallylink said fluid holders to said destination; flexible cables tolaterally link said system controller, said unit controllers, saiddriving means, and said batteries; and flexible linking means tolaterally link said pumping units, said system controller, and saidbatteries; so that said system controller determines which pumping unitto deliver said fluid; each said unit controller controls the associateddriving means to drive said piston to press out said fluid; said fluidpump is as thin as said pumping units, said system controller, and saidbatteries and is foldable.
 18. The closure of claim 17 wherein saiddriving means of said pumping unit is that said fluid holder is elasticand has tension when said fluid holder holds fluid so that said fluidholder pulls said piston and presses out said fluid when said unitcontroller releases said piston and said piston stops pressing saidfluid when said unit controller holds said piston.
 19. The closure ofclaim 17 wherein said driving means of said pumping unit compriseselastic devices so that said elastic devices press said piston to pressout said fluid when said unit controller releases said piston; and saidpiston stops pressing said fluid when said unit controller holds saidpiston.
 20. The closure of claim 17 wherein said driving means of saidpumping unit comprises air bags that are pumped with air or are linkedto the air reservoirs that are pumped with air before said pumping unitis used so that the compressed air in said air bags presses said pistonto press out said fluid when said unit controller releases said piston;and said piston stops pressing said fluid when said unit controllerholds said piston.
 21. The closure of claim 17 wherein said drivingmeans of said pumping unit comprises thin driver whose actuator drivessaid piston to press out the fluid.